4. Patients must have normal organ and marrow function defined as: absolute neutrophil count >/= 1,000/mL; platelets >/=90,000/mL; creatinine </= 2 X ULN; total bilirubin </= 2.0; ALT(SGPT) </= 5 X ULN; Exception for patients with liver metastasis: total bilirubin </= 3 x ULN; ALT(SGPT) </= 8 X ULN.